WO2008114511A1 - Agc circuit - Google Patents
Agc circuit Download PDFInfo
- Publication number
- WO2008114511A1 WO2008114511A1 PCT/JP2008/000642 JP2008000642W WO2008114511A1 WO 2008114511 A1 WO2008114511 A1 WO 2008114511A1 JP 2008000642 W JP2008000642 W JP 2008000642W WO 2008114511 A1 WO2008114511 A1 WO 2008114511A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit
- offset
- output signal
- signal
- output
- Prior art date
Links
- 238000006243 chemical reaction Methods 0.000 abstract 4
- 101100216045 Candida albicans (strain SC5314 / ATCC MYA-2876) GAM1 gene Proteins 0.000 abstract 2
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/001—Digital control of analog signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Control Of Amplification And Gain Control (AREA)
- Circuits Of Receivers In General (AREA)
- Amplifiers (AREA)
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009505083A JPWO2008114511A1 (en) | 2007-03-19 | 2008-03-19 | AGC circuit |
US12/298,279 US7795967B2 (en) | 2007-03-19 | 2008-03-19 | AGC circuit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-070274 | 2007-03-19 | ||
JP2007070274 | 2007-03-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008114511A1 true WO2008114511A1 (en) | 2008-09-25 |
Family
ID=39765629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/000642 WO2008114511A1 (en) | 2007-03-19 | 2008-03-19 | Agc circuit |
Country Status (4)
Country | Link |
---|---|
US (1) | US7795967B2 (en) |
JP (1) | JPWO2008114511A1 (en) |
CN (1) | CN101542899A (en) |
WO (1) | WO2008114511A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014120840A (en) * | 2012-12-14 | 2014-06-30 | Renesas Electronics Corp | Semiconductor device, and method for correcting offset voltage |
JP2021184649A (en) * | 2017-09-19 | 2021-12-02 | 株式会社東芝 | Amplifier circuit, ad converter, wireless communication device, and sensor system |
Families Citing this family (28)
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---|---|---|---|---|
CN101478296B (en) * | 2009-01-05 | 2011-12-21 | 华为终端有限公司 | Gain control method and apparatus in multi-channel system |
US8107913B1 (en) * | 2009-05-07 | 2012-01-31 | Qualcomm Atheros, Inc. | Method and apparatus for a digital regulated local oscillation (LO) buffer in radio frequency circuits |
US8611836B2 (en) | 2010-08-25 | 2013-12-17 | Skyworks Solutions, Inc. | Amplifier gain adjustment in response to reduced supply voltage |
EP2498400A1 (en) * | 2011-03-11 | 2012-09-12 | Dialog Semiconductor GmbH | A delta-sigma modulator approach to increased amplifier gain resolution |
CN102355214B (en) * | 2011-10-31 | 2014-01-15 | 四川和芯微电子股份有限公司 | Adjustable gain audio power amplification circuit |
EP2592751B1 (en) | 2011-11-14 | 2017-05-31 | Dialog Semiconductor GmbH | A sigma-delta modulator for increased volume resolution in audio output stages |
CN102607615B (en) * | 2012-03-29 | 2015-01-21 | 天津大学 | Gain self-compensating method for linear array CCD (Charge-coupled Device) pixel level signal and compensating circuit |
CN102624345A (en) * | 2012-04-09 | 2012-08-01 | 武汉科技大学 | Memristor-based automatic gain control circuit |
US9155140B2 (en) * | 2012-06-07 | 2015-10-06 | Gabriel Yavor | Optical waveform generator |
JP6214924B2 (en) * | 2012-09-14 | 2017-10-18 | ルネサスエレクトロニクス株式会社 | Controller and system having controller |
JP6207871B2 (en) * | 2013-04-17 | 2017-10-04 | ルネサスエレクトロニクス株式会社 | Semiconductor device and inverter system |
US9197179B2 (en) * | 2013-08-30 | 2015-11-24 | Broadcom Corporation | Low voltage transmitter |
TWI521870B (en) * | 2013-11-14 | 2016-02-11 | 瑞昱半導體股份有限公司 | Current balancing device and method |
US9432004B2 (en) * | 2014-04-17 | 2016-08-30 | Stmicroelectronics, Inc. | Automatic gain and offset compensation for an electronic circuit |
US9246458B2 (en) | 2014-06-05 | 2016-01-26 | Stmicroelectronics, Inc. | Fixed gain amplifier circuit |
JP6399442B2 (en) * | 2014-08-07 | 2018-10-03 | パナソニックIpマネジメント株式会社 | Power supply control device |
CN104270109B (en) * | 2014-09-23 | 2017-06-30 | 中国海洋石油总公司 | A kind of voltage controlled gain amplifying circuit |
CN105634427B (en) * | 2014-10-29 | 2018-03-16 | 北京航天计量测试技术研究所 | A kind of device for improving continuous wave signal micro light detecting amplifying circuit gain |
US9813034B2 (en) * | 2015-07-07 | 2017-11-07 | Marvell World Trade Ltd. | Amplification circuit and method of compensating for voltage offset of inputs |
CN109565630A (en) * | 2016-08-09 | 2019-04-02 | 哈曼国际工业有限公司 | Microphone and method for handling audio signal |
US10852329B2 (en) * | 2017-10-30 | 2020-12-01 | Microchip Technology Incorporated | High precision current sensing using sense amplifier with digital AZ offset compensation |
JP6986432B2 (en) * | 2017-12-15 | 2021-12-22 | 株式会社デンソーテン | Amplifier circuit |
CN108405629B (en) * | 2018-03-31 | 2019-11-22 | 扬州大学 | A kind of artificial circuit of the control method of the hot continuous rolling AGC system based on serials control |
KR102628656B1 (en) | 2018-07-04 | 2024-01-24 | 삼성전자주식회사 | Apparatus for detecting neural spike |
US10901009B2 (en) * | 2019-02-21 | 2021-01-26 | Shenzhen GOODIX Technology Co., Ltd. | Power detector for radiofrequency power amplifier circuits |
CN112187203B (en) * | 2020-09-14 | 2022-06-21 | 北京航空航天大学 | Automatic gain control circuit and gain adjusting method thereof |
CN113364418B (en) * | 2021-06-28 | 2023-03-21 | 贵州航天电子科技有限公司 | Program-controlled gain amplification circuit and signal control method |
CN114900143B (en) * | 2022-07-11 | 2022-11-08 | 南京燧锐科技有限公司 | Automatic gain control circuit and control method thereof |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60200604A (en) * | 1984-03-26 | 1985-10-11 | Hitachi Ltd | Variable gain amplifier circuit |
JPS61131073A (en) * | 1984-11-29 | 1986-06-18 | Fuji Electric Co Ltd | Logarithmic operation circuit |
JPH0794953A (en) * | 1993-09-20 | 1995-04-07 | Fujitsu Ltd | Mos inverting amplifier circuit |
JPH09500250A (en) * | 1993-07-12 | 1997-01-07 | アナログ・ディバイセス・インコーポレーテッド | Method and apparatus for calibrating a gain control circuit |
JP2000311350A (en) * | 1999-04-23 | 2000-11-07 | Sony Corp | Automatic gain controller, automatic gain control method and optical disk device |
JP2001036359A (en) * | 1999-07-22 | 2001-02-09 | Advantest Corp | Analog signal processing circuit and a/d converter |
JP2003022584A (en) * | 2001-07-10 | 2003-01-24 | Ricoh Co Ltd | Device and method for inspecting optical disk stamper, and program making computer execute the method |
JP2003273673A (en) * | 2002-03-18 | 2003-09-26 | Matsushita Electric Ind Co Ltd | Offset control device for variable gain amplifier |
JP2006165912A (en) * | 2004-12-06 | 2006-06-22 | Rohm Co Ltd | Signal processor and image pickup device using the same |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0374913A (en) | 1989-08-16 | 1991-03-29 | Matsushita Electric Ind Co Ltd | Automatic gain control circuit |
JP2901899B2 (en) | 1994-08-26 | 1999-06-07 | 松下電器産業株式会社 | Automatic gain control device |
JP2005117282A (en) * | 2003-10-06 | 2005-04-28 | Toyota Industries Corp | Gain control circuit |
US6952132B2 (en) * | 2003-11-26 | 2005-10-04 | Scintera Networks, Inc. | Method and apparatus for automatic gain control |
JP4139800B2 (en) | 2004-08-24 | 2008-08-27 | 松下電器産業株式会社 | AGC circuit |
-
2008
- 2008-03-19 JP JP2009505083A patent/JPWO2008114511A1/en not_active Withdrawn
- 2008-03-19 CN CNA2008800002230A patent/CN101542899A/en active Pending
- 2008-03-19 US US12/298,279 patent/US7795967B2/en active Active
- 2008-03-19 WO PCT/JP2008/000642 patent/WO2008114511A1/en active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60200604A (en) * | 1984-03-26 | 1985-10-11 | Hitachi Ltd | Variable gain amplifier circuit |
JPS61131073A (en) * | 1984-11-29 | 1986-06-18 | Fuji Electric Co Ltd | Logarithmic operation circuit |
JPH09500250A (en) * | 1993-07-12 | 1997-01-07 | アナログ・ディバイセス・インコーポレーテッド | Method and apparatus for calibrating a gain control circuit |
JPH0794953A (en) * | 1993-09-20 | 1995-04-07 | Fujitsu Ltd | Mos inverting amplifier circuit |
JP2000311350A (en) * | 1999-04-23 | 2000-11-07 | Sony Corp | Automatic gain controller, automatic gain control method and optical disk device |
JP2001036359A (en) * | 1999-07-22 | 2001-02-09 | Advantest Corp | Analog signal processing circuit and a/d converter |
JP2003022584A (en) * | 2001-07-10 | 2003-01-24 | Ricoh Co Ltd | Device and method for inspecting optical disk stamper, and program making computer execute the method |
JP2003273673A (en) * | 2002-03-18 | 2003-09-26 | Matsushita Electric Ind Co Ltd | Offset control device for variable gain amplifier |
JP2006165912A (en) * | 2004-12-06 | 2006-06-22 | Rohm Co Ltd | Signal processor and image pickup device using the same |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014120840A (en) * | 2012-12-14 | 2014-06-30 | Renesas Electronics Corp | Semiconductor device, and method for correcting offset voltage |
JP2021184649A (en) * | 2017-09-19 | 2021-12-02 | 株式会社東芝 | Amplifier circuit, ad converter, wireless communication device, and sensor system |
JP7228643B2 (en) | 2017-09-19 | 2023-02-24 | 株式会社東芝 | Amplifier circuit, AD converter, wireless communication device, and sensor system |
Also Published As
Publication number | Publication date |
---|---|
US20090096528A1 (en) | 2009-04-16 |
CN101542899A (en) | 2009-09-23 |
JPWO2008114511A1 (en) | 2010-07-01 |
US7795967B2 (en) | 2010-09-14 |
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